Refactor sensor definitions to use SelectRWSensor for Priority Load, …

…Passive Grid Balance, and Active Grid Balance with appropriate options and bitmasks

src/sunsynk/definitions/three_phase_common.py

@@ -288,7 +288,35 @@
 # System program
 #################
 
-SENSORS += SwitchRWSensor(141, "Priority Load")
+SENSORS += (
+    SelectRWSensor(
+        141,
+        "Priority Load",
+        options={
+            0b10 << 0: "Battery First",
+            0b11 << 0: "Load First",
+        },
+        bitmask=0b11 << 0,
+    ),
+    SelectRWSensor(
+        141,
+        "Passive Grid Balance",
+        options={
+            0b10 << 2: "Close",
+            0b11 << 2: "Open",
+        },
+        bitmask=0b11 << 2,
+    ),
+    SelectRWSensor(
+        141,
+        "Active Grid Balance",
+        options={
+            0b10 << 4: "Close",
+            0b11 << 4: "Open",
+        },
+        bitmask=0b11 << 4,
+    ),
+)
 
 SENSORS += SelectRWSensor(
     142,